Fort Worth daily gazette. (Fort Worth, Tex.) 1882-1891, 1887-05-21
POPULAR SCIENCE,
Items from Men Who DeIye Deep into
Natures Secrets.

Items from Men Who DeIve Deep int,
Natures Secrets.
Mr.. Frederick E. Ives, by washing hi.
! plates with chiorophyl solution in add.
ton to the ordinary preparation, takes
| Photographic pictures in which all the
cOlors and tones Of ColOr-including those
which the ordinary plates do not return
are represented in their proper gradatiOns
of light anu shade. A chlOrophyl solution
made from blue-myrtle leaves mas been
! found To be the best, although that from
few other leaves may be equal to it
| The quail tv Of the plates, when they are
| to be used Immediately, is improved if
the solution contain trace of eosine
But the chlorOphyl solution without the
| eosine may, by adding little zinc in the
preparation, De kept for considerable
time without losing its efficacy Popular
Science Monthly.
The following is said to be q sure test
for ascertaining whether wall paper con-
tainS arsenic: Take piece of paper and
pour ,on 1t strong aqua ammonia over g
saucer. II there be any arsenl; present
this will dissolve 1t. Collect the liquid in
vial or tube, and drop in crystal of
nitrate of silver. If there be arsenic
present little yellow crystals will make
their appearance about the nitrate of
silver. Arsenical green, when washed
with Ammonia, either turns blue or fades.
The saturating treatment for typhoid
fever is being populariZed in the columns
Of the Southern Practitioner. DR.. G.. W.
RenfrO concludes an article on treatment
as follows: "Saturate your patient with
turpentine and pickle him in acid, and ne
will not die of typhoid fever" DIR. J. w.
Grace offers, IS an amendment: 'fSat-
urate your patient in turpentine, pickle
him in acid, smooth him out with opium
and salt him down with quinine and he
can not die"
Nine. Zeluska in the Revue Scientifique
is authority for the statement that the
lowest temperature that NJ. Wroblewski
has produced, by allowing uquefed by
drogen to escape, is-211' G., or about
$500 Fair. At this temperature, she
adds, neither gases nor liquids exist, but
everything is solicited. The metals lose
their electric resistance, and the current
passes through matter without develop
ing heat in 1t.
The river thyme, which has been gen.
orally voted q nuisance, choking up
ponds and rivers with it's RAPID growth,
is now thought to be remarkable health
plant. A German doctor has discoveries
that IN his district malaria and diarrhea
have decreased since the water thyme
began to infest the streams. The plant
feeds on decsyed vegetable matter, ETC.,
which are supposed to breed disease
germs.
The use of the gall of rattlesnakes is
warmly urged by NJ. Koskicky of Austria
as al antidote for snake bites. NJ. Kos
kicky, who became acquainted with the
antidote in Venezuela, declares it both
inexpensive and effective, as well as in
Simultaneous in its operation, cows and
dogs in the last stage of the poison recov-
ering immediately on the remedy being
administered to them.
1t has been suggested that ropes used
for scaffolding purposes, especially in To-
calitles where the atmosphere is apt to
destroy hemp, should be dipped when dry
in g bath containing twenty grains of s9EI
phate of copper per litre Of water; and
kept in this solution about four days.sThe
sulphate of copper absorbed will, it is be-
lieved, preserve them from attacks Of pars;;
asites and rot.
Professor Neumayer of Hamburg, urae8
the necessity of Antarctic expioratf6n,
laying special stress on its import6nce